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The Effect of s‐p Hybridization on the Band Structure of a Perturbed Linear Chain
Author(s) -
Mourad P.
Publication year - 1965
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19650120226
Subject(s) - brillouin zone , perturbation (astronomy) , bound state , physics , chain (unit) , homogeneous space , quantum mechanics , condensed matter physics , mathematics , geometry
The LCAO approximation is used to study the effects of s‐p hybridization on the band structure of a linear chain in the presence of a localized perturbation. Bound states normally appear at the centre and at the edge of the Brillouin zone; but sometimes hybridization will introduce an intermediary minimum in the band structure and a perturbation will make a bound state leave the band at the minimum. The symmetries of the bound states are examined. The hybrid character of the self‐trapped hole in the V K centre is analysed in this way.